Celeb Hookups: Michael Phelps and Nicole Johnson

The bride was adorned in an Adele Wechsler gown, while the groom wore a J. Lindeberg suit.

Both Collen, 52, and Simmons, 42, met during Def Leppard’s "Sparkle Lounge" tour two years ago.

Top Entertainment Photos

"We've been looking for each other our entire lifetime," Collen told the magazine. "To say we're ecstatic this day has finally come is putting it mildly. It could only be us for each other."

The wedding also incorporated some environmentally-conscious flourishes, including e-mail invitations and a vegetarian and vegan menu at the reception.

Outrageous Style Icons

"We didn't intentionally start out trying to have green wedding," Collen said to People. "But since it's a natural part of our lifestyle to respect the environment, everything flowed pretty naturally."

Collen joined Def Leppard for their 1983 album "Pyromania," that contained the hits “Photograph,” “Foolin’” and “Rock of Ages.”